Contacts of the helix formed by residues 321 - 335 (chain B) in PDB entry 2Y01


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with PRO 321 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    318B  ASP      4.4     1.3    -      -       -      +
    319B  LEU      3.7     8.3    -      -       -      +
    320B  VAL*     1.3    88.4    -      -       +      +
    322B  ASP*     1.3    65.8    +      -       -      +
    323B  TRP*     3.3    37.2    -      -       +      +
    324B  LEU*     2.9    36.0    +      -       +      +
    325B  PHE*     3.3     9.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 322 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320B  VAL      3.5     4.1    +      -       -      -
    321B  PRO*     1.3    71.1    -      -       -      +
    323B  TRP*     1.3    62.4    +      -       +      +
    325B  PHE*     3.5     9.5    -      -       -      +
    326B  VAL*     3.4    28.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 323 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    321B  PRO*     3.3    32.3    -      -       +      +
    322B  ASP*     1.3    80.4    -      -       +      +
    324B  LEU*     1.3    94.4    +      -       +      +
    326B  VAL*     3.5     8.1    +      -       -      +
    327B  ALA*     2.9    31.9    +      -       +      +
    504B  2CV      5.7     3.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 324 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    309B  VAL*     5.2     0.2    -      -       +      -
    320B  VAL*     4.5    13.0    -      -       +      -
    321B  PRO*     2.9    35.0    +      -       +      +
    323B  TRP*     1.3   104.6    -      -       +      +
    325B  PHE*     1.3    56.0    +      -       -      +
    327B  ALA*     3.1     8.1    +      -       +      +
    328B  PHE*     2.8    76.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 325 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201B  PHE*     5.1    21.3    -      +       +      -
    306B  PHE*     3.6    32.2    -      +       -      -
    309B  VAL*     3.4    35.4    -      -       +      -
    310B  ASN*     4.1    19.7    -      -       -      -
    313B  ASN*     3.7    26.0    -      -       -      +
    320B  VAL*     4.3     5.6    -      -       +      +
    321B  PRO      3.3     7.3    +      -       -      +
    322B  ASP*     3.5    12.8    -      -       -      +
    324B  LEU*     1.3    77.1    -      -       -      +
    326B  VAL*     1.3    73.5    +      -       +      +
    328B  PHE*     3.3     3.8    +      -       -      +
    329B  ASN*     3.1    23.7    +      -       +      +
    601B  Y00      5.2    10.1    -      +       +      -
----------------------------------------------------------
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Residues in contact with VAL 326 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102B  VAL*     5.3     1.6    -      -       +      -
    322B  ASP*     3.4    21.7    +      -       -      +
    323B  TRP*     3.8     9.6    -      -       -      +
    324B  LEU      3.3     0.4    -      -       -      -
    325B  PHE*     1.3    85.0    -      -       +      +
    327B  ALA*     1.3    62.4    +      -       -      +
    329B  ASN*     3.4     7.2    +      -       -      +
    330B  TRP*     3.1    38.5    +      -       +      +
    504B  2CV      4.6    13.2    -      -       +      -
    601B  Y00      3.9    38.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 327 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    323B  TRP*     2.9    20.2    +      -       +      +
    324B  LEU*     3.1    19.0    +      -       +      +
    326B  VAL*     1.3    75.7    -      -       -      +
    328B  PHE*     1.3    63.5    +      -       +      +
    330B  TRP*     2.8    24.6    +      -       -      +
    331B  LEU*     2.8    14.1    +      -       -      +
    504B  2CV      5.3     9.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 328 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    302B  CYS      4.1     4.0    -      -       -      +
    305B  PRO*     3.7    31.1    -      -       +      +
    306B  PHE*     3.6    28.3    +      -       +      +
    309B  VAL*     3.9    26.9    -      -       +      -
    324B  LEU*     2.8    58.8    +      -       +      +
    325B  PHE*     3.7     5.4    -      -       -      +
    327B  ALA*     1.3    75.2    -      -       +      +
    329B  ASN*     1.3    58.3    -      -       -      +
    331B  LEU*     3.6    16.9    +      -       +      +
    332B  GLY*     3.3    14.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 329 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121B  ASP*     4.0     1.8    +      -       -      -
    303B  TRP*     3.9    12.5    -      -       -      -
    306B  PHE*     3.6    25.9    -      -       +      -
    325B  PHE*     3.1    12.3    +      -       +      +
    326B  VAL*     3.6    11.9    -      -       -      +
    327B  ALA      3.1     0.6    -      -       -      -
    328B  PHE*     1.3    75.6    -      -       -      +
    330B  TRP*     1.3    61.0    +      -       -      +
    332B  GLY*     3.3     2.6    +      -       -      +
    333B  TYR*     3.1    49.7    +      -       -      -
    601B  Y00      3.2    45.9    +      -       +      +
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Residues in contact with TRP 330 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48B  MET*     3.1    39.0    -      -       +      -
     51B  VAL*     4.9     5.2    -      -       +      -
     95B  VAL*     3.9    20.4    -      -       +      -
     98B  GLY*     3.8    24.2    -      -       -      -
     99B  ALA      4.0     6.1    -      -       -      -
    102B  VAL*     3.8    12.9    -      -       +      +
    326B  VAL*     3.1    33.7    +      -       +      -
    327B  ALA*     2.8     9.4    +      -       -      +
    329B  ASN*     1.3    74.5    -      -       -      +
    331B  LEU*     1.3    59.4    +      -       -      +
    332B  GLY      3.1     1.3    -      -       -      -
    333B  TYR*     3.1    38.8    +      +       +      +
    334B  ALA*     2.8    28.6    +      -       -      +
    504B  2CV      3.6    45.7    +      -       +      +
    601B  Y00      3.5    23.4    +      +       -      -
----------------------------------------------------------
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Residues in contact with LEU 331 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    301B  LEU      4.1    13.2    -      -       -      +
    302B  CYS*     3.5    35.4    -      -       -      +
    305B  PRO*     4.2    13.5    -      -       +      -
    327B  ALA      2.8    11.3    +      -       -      +
    328B  PHE*     3.6    22.2    -      -       +      +
    329B  ASN      3.3     0.2    -      -       -      -
    330B  TRP*     1.3    75.5    -      -       -      +
    332B  GLY*     1.3    62.6    +      -       -      +
    334B  ALA*     3.2    24.6    +      -       +      +
    335B  ASN      3.4     4.7    +      -       -      -
    338B  MET*     4.9     4.7    -      -       +      -
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Residues in contact with GLY 332 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    302B  CYS*     3.5     7.7    +      -       -      -
    303B  TRP*     3.4    44.8    +      -       -      -
    328B  PHE      3.3     5.1    +      -       -      -
    329B  ASN      3.3     7.2    +      -       -      -
    330B  TRP      3.1     0.4    -      -       -      -
    331B  LEU*     1.3    78.3    -      -       -      +
    333B  TYR*     1.3    61.8    -      -       -      +
    335B  ASN*     3.2    18.9    +      -       -      +
    336B  SER*     4.3     2.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 333 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55B  ILE*     4.1     8.1    -      -       -      +
     90B  VAL*     4.2    10.4    -      -       +      +
     94B  VAL*     3.6    25.8    -      -       +      +
     95B  VAL*     3.9    20.4    -      -       +      -
    117B  TRP*     3.8     6.8    -      +       -      -
    121B  ASP*     2.8    35.6    +      -       -      -
    303B  TRP*     4.2     7.0    -      +       -      -
    329B  ASN*     3.1    28.5    +      -       -      -
    330B  TRP*     3.1    49.6    +      +       +      +
    332B  GLY*     1.3    75.5    -      -       -      +
    334B  ALA*     1.3    63.6    +      -       -      +
    336B  SER*     3.1    24.0    +      -       -      -
    601B  Y00      3.4    30.5    -      +       -      +
----------------------------------------------------------
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Residues in contact with ALA 334 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51B  VAL*     5.8     5.2    -      -       -      -
     55B  ILE*     5.5     2.0    -      -       -      -
    330B  TRP      2.8    12.7    +      -       -      +
    331B  LEU*     3.2    20.0    -      -       +      +
    332B  GLY      3.1     0.2    -      -       -      -
    333B  TYR*     1.3    77.5    -      -       -      +
    335B  ASN*     1.3    59.8    +      -       -      +
    337B  ALA*     3.1    23.8    +      -       -      +
    338B  MET*     3.7    22.4    -      -       +      +
    504B  2CV      5.8     5.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 335 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87B  ASP*     4.5    11.9    +      -       -      +
    128B  SER*     5.7     0.6    +      -       -      -
    295B  ILE      5.0     0.3    -      -       -      +
    298B  VAL*     3.9    13.0    -      -       -      +
    299B  PHE*     3.3    55.2    +      -       -      +
    302B  CYS*     3.7    16.5    -      -       +      -
    303B  TRP*     4.4     3.6    -      -       -      +
    331B  LEU      3.4     2.2    +      -       -      -
    332B  GLY      3.2    14.3    +      -       -      +
    333B  TYR      3.1     1.0    -      -       -      -
    334B  ALA*     1.3    77.7    -      -       -      +
    336B  SER*     1.3    58.3    +      -       -      +
    337B  ALA      3.0     5.3    +      -       -      -
    338B  MET*     3.1    23.9    +      -       -      +
    339B  ASN*     4.1    16.8    +      -       -      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il